{"id":33351,"date":"2026-09-21T10:00:00","date_gmt":"2026-09-21T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=33351"},"modified":"2026-09-22T22:00:29","modified_gmt":"2026-09-22T14:00:29","slug":"modsecurity-waf-attack-protection-config","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/modsecurity-waf-attack-protection-config\/","title":{"rendered":"ModSecurity WAF \u4e0a\u7ebf\u6307\u5357\uff1a\u4ece\u8bef\u62a5\u57fa\u7ebf\u5230\u5b89\u5168\u5f00\u542f\u62e6\u622a"},"content":{"rendered":"<p>\u7f51\u7ad9\u4e0a\u7ebf\u540e\uff0c\u626b\u63cf\u5668\u3001\u6ce8\u5165\u5de5\u5177\u548c\u6076\u610f\u722c\u866b\u5f88\u5feb\u5c31\u4f1a\u627e\u4e0a\u95e8\u3002\u5982\u4f55\u8ba9\u7f51\u7ad9\u5728\u9762\u5bf9 SQL \u6ce8\u5165\u3001XSS \u8fd9\u7c7b\u5e38\u89c1\u653b\u51fb\u65f6\u6709\u5b9e\u9645\u7684\u62e6\u622a\u80fd\u529b\uff1fModSecurity WAF\uff08Web \u5e94\u7528\u9632\u706b\u5899\uff09\u662f\u76ee\u524d\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684\u5f00\u6e90\u65b9\u6848\u4e4b\u4e00\uff0c\u5b83\u90e8\u7f72\u5728 Web \u670d\u52a1\u5668\u5c42\uff0c\u901a\u8fc7\u89c4\u5219\u5339\u914d\u5728\u6076\u610f\u6d41\u91cf\u5230\u8fbe\u4e1a\u52a1\u4ee3\u7801\u4e4b\u524d\u5b8c\u6210\u62e6\u622a\u3002\u8fd9\u7bc7\u6587\u7ae0\u5e26\u4f60\u5b8c\u6210\u4e00\u6b21\u53ef\u843d\u5730\u7684 ModSecurity \u914d\u7f6e\uff1a\u4ece\u5b89\u88c5\u3001\u542f\u7528 OWASP CRS\uff08OWASP \u6838\u5fc3\u89c4\u5219\u96c6\uff09\uff0c\u5230\u5904\u7406\u8bef\u62a5\u3001\u9a8c\u8bc1\u62e6\u622a\u6548\u679c\uff0c\u6bcf\u4e00\u6b65\u90fd\u7ed9\u51fa\u53ef\u6267\u884c\u7684\u547d\u4ee4\u3002\u65e0\u8bba\u4f60\u7684\u7f51\u7ad9\u8dd1\u5728 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a>\uff08<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u8fd8\u662f<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\u4e0a\uff0c\u7167\u7740\u505a\u5c31\u80fd\u5efa\u7acb\u8d77\u7b2c\u4e00\u9053\u9632\u7ebf\u3002<\/p>\n<p><!--more--><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/modsecurity-waf-cover.webp\" alt=\"ModSecurity WAF \u62e6\u622a\u6076\u610f\u8bf7\u6c42\u4fdd\u62a4\u7f51\u7ad9\u670d\u52a1\u5668\u7684\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u4e3a\u4ec0\u4e48\u7f51\u7ad9\u9700\u8981 ModSecurity WAF<\/h2>\n<p>\u5148\u770b\u51e0\u4e2a\u771f\u5b9e\u573a\u666f\uff1a\u4e00\u4e2a WordPress \u7ad9\u70b9\u4e0a\u7ebf\u4e24\u5468\u540e\uff0c\u65e5\u5fd7\u91cc\u5f00\u59cb\u51fa\u73b0\u5927\u91cf <code>\/?id=1' union select<\/code> \u8bf7\u6c42\uff1b\u767b\u5f55\u63a5\u53e3\u6bcf\u5929\u88ab\u649e\u5e93\u51e0\u767e\u6b21\uff1b\u63d2\u4ef6\u6f0f\u6d1e\u516c\u5e03\u540e\uff0c\u626b\u63cf\u5668\u51e0\u5c0f\u65f6\u5185\u5c31\u8986\u76d6\u4e86\u4f60\u7684\u57df\u540d\u3002\u5e94\u7528\u5c42\u8865\u4e01\u9700\u8981\u5f00\u53d1\u4ecb\u5165\uff0c\u800c WAF \u7684\u4ef7\u503c\u5728\u4e8e\u7528\u89c4\u5219\u5728\u5165\u53e3\u5904\u6321\u4f4f\u5927\u90e8\u5206\u653b\u51fb\u6d41\u91cf\u3002<\/p>\n<p>ModSecurity \u7684\u62e6\u622a\u80fd\u529b\u6765\u81ea\u89c4\u5219\u96c6\u3002\u793e\u533a\u7ef4\u62a4\u7684 OWASP CRS \u76ee\u524d\u5df2\u53d1\u5c55\u5230\u7b2c 4 \u7248\uff0c\u5305\u542b 400 \u591a\u6761\u89c4\u5219\uff0c\u8986\u76d6 SQL \u6ce8\u5165\u3001\u8de8\u7ad9\u811a\u672c\u3001\u672c\u5730\u6587\u4ef6\u5305\u542b\u7b49\u5e38\u89c1\u653b\u51fb\u7c7b\u578b\u3002\u8981\u5ba2\u89c2\u770b\u5f85\u7684\u662f\uff1aWAF \u4e0d\u662f&#8221;\u88c5\u4e0a\u5c31\u7edd\u5bf9\u5b89\u5168&#8221;\u7684\u94f6\u5f39\uff0c\u5b83\u62e6\u622a\u5df2\u77e5\u6a21\u5f0f\u7684\u653b\u51fb\uff0c\u5bf9\u96f6\u65e5\u6f0f\u6d1e\u548c\u903b\u8f91\u6f0f\u6d1e\u9632\u62a4\u6709\u9650\u3002\u6b63\u786e\u5b9a\u4f4d\u662f\u628a\u5b83\u5f53\u4f5c\u7eb5\u6df1\u9632\u5fa1\u7684\u7b2c\u4e00\u5c42\uff0c\u914d\u5408\u7cfb\u7edf\u52a0\u56fa\u4e00\u8d77\u4f7f\u7528\uff0c\u76f8\u5173\u65b9\u6cd5\u53ef\u53c2\u8003\u8fd9\u7bc7<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/server-security-hardening-checklist\/\">\u670d\u52a1\u5668\u5b89\u5168\u52a0\u56fa\u6e05\u5355<\/a>\u3002<\/p>\n<h2>\u5b89\u88c5 ModSecurity\uff1aApache \u4e0e Nginx \u4e24\u79cd\u8def\u5f84<\/h2>\n<p>\u5b89\u88c5\u65b9\u5f0f\u53d6\u51b3\u4e8e Web \u670d\u52a1\u5668\u7c7b\u578b\u3002<\/p>\n<p><strong>Nginx + ModSecurity v3\uff08libmodsecurity\uff09<\/strong> \u662f\u76ee\u524d\u4e3b\u6d41\u7684\u7ec4\u5408\u3002\u4ee5 Ubuntu 22.04 \u4e3a\u4f8b\uff0c\u4f18\u5148\u4f7f\u7528\u53d1\u884c\u7248\u9884\u7f16\u8bd1\u5305\uff0c\u4e00\u6761\u547d\u4ee4\u5b8c\u6210\uff1a<\/p>\n<pre><code class=\"language-bash\">sudo apt update\nsudo apt install -y libmodsecurity3 libnginx-mod-http-modsecurity\n<\/code><\/pre>\n<p>\u9700\u8981\u7279\u5b9a\u7248\u672c\u6216\u81ea\u5b9a\u4e49\u7f16\u8bd1\u9009\u9879\u65f6\uff0c\u518d\u4ece\u5b98\u65b9\u4ed3\u5e93\u6e90\u7801\u7f16\u8bd1\u3002<\/p>\n<p><strong>Apache \u73af\u5883\u5219\u7b80\u5355\u5f97\u591a<\/strong>\uff0cv2.9 \u7248\u672c\u4ee5\u6a21\u5757\u5f62\u5f0f\u5185\u7f6e\u5728\u8f6f\u4ef6\u6e90\u4e2d\uff1a<\/p>\n<pre><code class=\"language-bash\">sudo apt install -y libapache2-mod-security2\nsudo systemctl restart apache2\n<\/code><\/pre>\n<p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u628a\u9ed8\u8ba4\u63a8\u8350\u914d\u7f6e\u590d\u5236\u4e3a\u6b63\u5f0f\u914d\u7f6e\uff1a<\/p>\n<pre><code class=\"language-bash\">sudo cp \/etc\/modsecurity\/modsecurity.conf-recommended \/etc\/modsecurity\/modsecurity.conf\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u6587\u4ef6\u91cc\u6700\u5173\u952e\u7684\u4e00\u884c\u662f <code>SecRuleEngine<\/code>\uff0c\u5b83\u51b3\u5b9a WAF \u7684\u5de5\u4f5c\u6a21\u5f0f\u3002\u540e\u9762\u4f1a\u8be6\u7ec6\u8bb2\u5982\u4f55\u5728\u8fd9\u4e09\u79cd\u6a21\u5f0f\u95f4\u5207\u6362\u3002<\/p>\n<h2>\u4e09\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff1a\u5148\u68c0\u6d4b\u3001\u518d\u62e6\u622a<\/h2>\n<p>ModSecurity \u6709\u4e09\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff0c\u6b63\u786e\u7684\u4e0a\u7ebf\u987a\u5e8f\u662f&#8221;\u5148\u89c2\u5bdf\u3001\u540e\u62e6\u622a&#8221;\uff0c\u76f4\u63a5\u5f00\u62e6\u622a\u662f\u65b0\u624b\u6700\u5e38\u72af\u7684\u9519\u8bef\u3002<\/p>\n<ol>\n<li><code>SecRuleEngine On<\/code>\uff1a\u62e6\u622a\u6a21\u5f0f\uff0c\u547d\u4e2d\u89c4\u5219\u7684\u8bf7\u6c42\u76f4\u63a5\u963b\u65ad\u5e76\u8fd4\u56de 403<\/li>\n<li><code>SecRuleEngine DetectionOnly<\/code>\uff1a\u68c0\u6d4b\u6a21\u5f0f\uff0c\u53ea\u8bb0\u5f55\u65e5\u5fd7\u4e0d\u62e6\u622a\uff0c\u7528\u4e8e\u89c2\u5bdf\u8bef\u62a5<\/li>\n<li><code>SecRuleEngine Off<\/code>\uff1a\u5b8c\u5168\u5173\u95ed<\/li>\n<\/ol>\n<p><strong>\u63a8\u8350\u7684\u4e0a\u7ebf\u8282\u594f\u662f\uff1a\u81f3\u5c11\u8ba9 DetectionOnly \u8fd0\u884c 48 \u5c0f\u65f6<\/strong>\u3002\u4ee5\u4e00\u4e2a\u65e5\u5747 1 \u4e07\u8bf7\u6c42\u7684\u4e2d\u578b\u7ad9\u70b9\u4e3a\u4f8b\uff0c\u8fd9\u671f\u95f4\u65e5\u5fd7\u91cc\u4f1a\u79ef\u7d2f\u771f\u5b9e\u4e1a\u52a1\u6d41\u91cf\u89e6\u53d1\u7684\u6240\u6709\u89c4\u5219\u547d\u4e2d\u8bb0\u5f55\u3002\u5148\u7528\u68c0\u6d4b\u6a21\u5f0f\u8dd1\u6ee1\u4e24\u4e2a\u5b8c\u6574\u7684\u4e1a\u52a1\u5468\u671f\uff08\u5305\u62ec\u5468\u672b\u7684\u6d41\u91cf\u9ad8\u5cf0\uff09\uff0c\u518d\u6839\u636e\u65e5\u5fd7\u9010\u6761\u5904\u7406\u8bef\u62a5\uff0c\u6700\u540e\u624d\u5207\u6362\u5230 On \u6a21\u5f0f\u3002\u76f4\u63a5\u5f00\u542f\u62e6\u622a\u7684\u4ee3\u4ef7\u5f80\u5f80\u662f\u652f\u4ed8\u63a5\u53e3\u3001\u7f16\u8f91\u5668\u4e0a\u4f20\u7b49\u529f\u80fd\u7a81\u7136 403\uff0c\u4e1a\u52a1\u65b9\u5148\u4e8e\u4f60\u53d1\u73b0\u95ee\u9898\u7684\u5c34\u5c2c\u573a\u9762\u3002<\/p>\n<p>\u5207\u6362\u5230\u62e6\u622a\u6a21\u5f0f\u540e\uff0c\u8fd8\u8981\u8bbe\u7f6e\u5408\u7406\u7684\u5f02\u5e38\u8bc4\u5206\u9608\u503c\u3002CRS 4.x \u9ed8\u8ba4\u91c7\u7528\u5f02\u5e38\u8bc4\u5206\uff08Anomaly Scoring\uff09\u6a21\u5f0f\uff0c\u6bcf\u6761\u89c4\u5219\u547d\u4e2d\u90fd\u4f1a\u7d2f\u52a0\u5206\u6570\uff0c\u8d85\u8fc7\u9608\u503c\u624d\u62e6\u622a\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u5728 crs-setup.conf \u4e2d\u8c03\u6574\nsetvar:&quot;tx.inbound_anomaly_score_threshold=5&quot;\n<\/code><\/pre>\n<p>\u9ed8\u8ba4\u9608\u503c 5 \u9002\u5408\u5927\u591a\u6570\u7ad9\u70b9\u3002\u5982\u679c\u4f60\u7684\u7f51\u7ad9\u6709\u5927\u91cf\u5bcc\u6587\u672c\u63d0\u4ea4\uff08\u5982 CMS \u540e\u53f0\uff09\uff0c\u53ef\u4ee5\u9002\u5f53\u8c03\u9ad8\u5230 7-10\uff0c\u914d\u5408\u7cbe\u7ec6\u5316\u7684\u8bef\u62a5\u6392\u9664\u89c4\u5219\u4f7f\u7528\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/modsecurity-waf-detection-workflow.webp\" alt=\"ModSecurity WAF \u8bf7\u6c42\u68c0\u6d4b\u4e0e\u62e6\u622a\u6d41\u7a0b\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u542f\u7528 OWASP CRS \u89c4\u5219\u96c6<\/h2>\n<p>ModSecurity \u672c\u8eab\u53ea\u662f\u89c4\u5219\u5f15\u64ce\uff0c\u771f\u6b63\u51b3\u5b9a\u62e6\u622a\u80fd\u529b\u7684\u662f\u89c4\u5219\u96c6\u3002OWASP CRS \u662f\u4e8b\u5b9e\u4e0a\u7684\u6807\u51c6\u9009\u62e9\u3002<\/p>\n<pre><code class=\"language-bash\">cd \/etc\/modsecurity\nsudo git clone https:\/\/github.com\/coreruleset\/coreruleset.git owasp-crs\ncd owasp-crs\nsudo cp crs-setup.conf.example crs-setup.conf\n<\/code><\/pre>\n<p>\u7136\u540e\u5728 Apache \u6216 Nginx \u7684\u914d\u7f6e\u4e2d\u5f15\u5165\u89c4\u5219\u6587\u4ef6\u3002\u4ee5 Nginx \u4e3a\u4f8b\uff0c\u5728 <code>nginx.conf<\/code> \u7684 http \u5757\u4e2d\u6dfb\u52a0\uff1a<\/p>\n<pre><code class=\"language-nginx\">include \/etc\/modsecurity\/owasp-crs\/rules\/*.conf;\n<\/code><\/pre>\n<p>\u52a0\u8f7d\u540e\u6267\u884c <code>nginx -t<\/code> \u9a8c\u8bc1\u914d\u7f6e\u8bed\u6cd5\uff0c\u518d\u5e73\u6ed1\u91cd\u8f7d\uff1a<\/p>\n<pre><code class=\"language-bash\">sudo nginx -t &amp;&amp; sudo systemctl reload nginx\n<\/code><\/pre>\n<p><strong>\u9a8c\u8bc1\u89c4\u5219\u662f\u5426\u751f\u6548<\/strong>\uff1a\u53d1\u4e00\u4e2a\u6a21\u62df\u653b\u51fb\u8bf7\u6c42 <code>curl -I \"https:\/\/your-domain.com\/?id=1%20union%20select\"<\/code>\uff0c\u8fd4\u56de 403 \u4e14 <code>modsec_audit.log<\/code> \u4e2d\u51fa\u73b0 <code>Anomaly Score Exceeded<\/code>\uff0c\u8bf4\u660e\u62e6\u622a\u94fe\u8def\u5df2\u6253\u901a\u3002<\/p>\n<h2>\u8bef\u62a5\u5904\u7406\uff1a\u8ba9\u89c4\u5219\u9002\u914d\u771f\u5b9e\u4e1a\u52a1<\/h2>\n<p>\u8bef\u62a5\u662f WAF \u8fd0\u7ef4\u4e2d\u6700\u6d88\u8017\u65f6\u95f4\u7684\u90e8\u5206\u3002\u5178\u578b\u573a\u666f\u5305\u62ec\uff1a\u5bcc\u6587\u672c\u7f16\u8f91\u5668\u63d0\u4ea4\u542b HTML \u7684\u5185\u5bb9\u88ab XSS \u89c4\u5219\u547d\u4e2d\u3001\u542b\u7279\u6b8a\u5b57\u7b26\u7684\u67e5\u8be2\u53c2\u6570\u89e6\u53d1\u6ce8\u5165\u89c4\u5219\u7b49\u3002<\/p>\n<p>\u5904\u7406\u8bef\u62a5\u7684\u6807\u51c6\u505a\u6cd5\u662f&#8221;\u7cbe\u51c6\u6392\u9664&#8221;\uff0c\u800c\u4e0d\u662f\u7c97\u66b4\u8c03\u4f4e\u9608\u503c\u3002\u4ee5 WordPress \u540e\u53f0\u4e0a\u4f20\u4e3b\u9898\u65f6\u88ab\u8bef\u62e6\u4e3a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-apache\"># \u53ea\u9488\u5bf9 \/wp-admin\/update.php \u6392\u9664\u89c4\u5219 942100\uff08SQL \u6ce8\u5165\u68c0\u6d4b\uff09\nSecRule REQUEST_URI &quot;@beginsWith \/wp-admin\/update.php&quot;     &quot;id:1000001,phase:1,pass,nolog,ctl:ruleRemoveById=942100&quot;\n<\/code><\/pre>\n<p>\u8fd9\u6761\u89c4\u5219\u7684\u542b\u4e49\u662f\uff1a\u53ea\u6709\u8bbf\u95ee\u8fd9\u4e2a\u7279\u5b9a\u8def\u5f84\u65f6\u624d\u5173\u95ed\u6307\u5b9a\u89c4\u5219\uff0c\u5176\u4ed6\u8def\u5f84\u4ecd\u7136\u53d7\u4fdd\u62a4\u3002\u6392\u9664\u89c4\u5219\u8981\u9075\u5faa\u4e09\u4e2a\u539f\u5219\uff1a<\/p>\n<ol>\n<li>\u5c3d\u91cf\u7ed1\u5b9a\u5230\u5177\u4f53\u7684 URI \u8def\u5f84\uff0c\u4e0d\u505a\u5168\u5c40\u6392\u9664<\/li>\n<li>\u5c3d\u91cf\u6307\u5b9a\u89c4\u5219 ID\uff0c\u800c\u4e0d\u662f\u5173\u95ed\u6574\u7ec4\u89c4\u5219<\/li>\n<li>\u6bcf\u6761\u6392\u9664\u89c4\u5219\u90fd\u5199\u6ce8\u91ca\uff0c\u8bf4\u660e\u9488\u5bf9\u7684\u4e1a\u52a1\u573a\u666f\u548c\u65e5\u671f<\/li>\n<\/ol>\n<p>\u6bcf\u6b21\u8c03\u6574\u540e\u90fd\u8981\u91cd\u65b0\u9a8c\u8bc1\uff1a\u5148\u53d1\u4e00\u4e2a\u539f\u59cb\u653b\u51fb\u6837\u4f8b\u786e\u8ba4\u4ecd\u7136\u88ab\u62e6\u622a\uff0c\u518d\u53d1\u4e00\u4e2a\u6b63\u5e38\u4e1a\u52a1\u8bf7\u6c42\u786e\u8ba4\u4e0d\u518d\u8bef\u62a5\u3002\u5982\u679c\u8bef\u62a5\u6570\u91cf\u8f83\u591a\u96be\u4ee5\u9010\u4e00\u5904\u7406\uff0c\u4e5f\u53ef\u4ee5\u53c2\u8003\u8fd9\u7bc7<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/modsecurity-waf-tuning-guide\/\">ModSecurity WAF \u8bef\u62a5\u8c03\u4f18\u6307\u5357<\/a>\u4e2d\u7684\u7cfb\u7edf\u5316\u6392\u67e5\u6d41\u7a0b\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/modsecurity-waf-tuning-balance.webp\" alt=\"WAF \u5bbd\u677e\u89c4\u5219\u4e0e\u7cbe\u51c6\u89c4\u5219\u8bef\u62a5\u5bf9\u6bd4\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u5e38\u89c1\u653b\u51fb\u7684\u62e6\u622a\u6548\u679c\u9a8c\u8bc1<\/h2>\n<p>\u914d\u7f6e\u5b8c\u6210\u540e\uff0c\u9488\u5bf9\u4e0d\u540c\u653b\u51fb\u7c7b\u578b\u9010\u4e00\u9a8c\u8bc1\u62e6\u622a\u6548\u679c\uff0c\u624d\u80fd\u786e\u8ba4\u9632\u7ebf\u771f\u5b9e\u6709\u6548\u3002<\/p>\n<p><strong>SQL \u6ce8\u5165<\/strong>\uff1a\u524d\u9762\u7528\u8fc7\u7684 <code>?id=1 union select<\/code> \u662f\u6700\u57fa\u7840\u7684\u6d4b\u8bd5\u3002\u66f4\u63a5\u8fd1\u771f\u5b9e\u653b\u51fb\u7684\u6837\u4f8b\u5305\u62ec\u65f6\u95f4\u76f2\u6ce8\uff08<code>sleep(5)<\/code>\uff09\u548c\u62a5\u9519\u6ce8\u5165\uff08<code>extractvalue<\/code>\uff09\uff0c\u8fd9\u4e9b\u90fd\u5e94\u8be5\u547d\u4e2d 942 \u7ec4\u89c4\u5219\u3002<\/p>\n<p><strong>XSS \u653b\u51fb<\/strong>\uff1a\u6784\u9020 <code>&lt;script&gt;alert(1)&lt;\/script&gt;<\/code> \u63d0\u4ea4\u5230\u641c\u7d22\u6846\u6216\u8bc4\u8bba\u8868\u5355\uff0c\u8bf7\u6c42\u5e94\u88ab\u963b\u65ad\u3002CRS \u7684 941 \u7ec4\u89c4\u5219\u4e13\u95e8\u5904\u7406 XSS \u68c0\u6d4b\uff0c\u5bf9\u4e8b\u4ef6\u5904\u7406\u5668\uff08<code>onerror<\/code>\u3001<code>onload<\/code>\uff09\u548c\u6807\u7b7e\u95ed\u5408\u90fd\u6709\u8986\u76d6\u3002<\/p>\n<p><strong>\u6587\u4ef6\u5305\u542b\u653b\u51fb<\/strong>\uff1a\u5c1d\u8bd5\u8bf7\u6c42 <code>?file=..\/..\/etc\/passwd<\/code>\uff0c\u5e94\u89e6\u53d1 930 \u7ec4\u89c4\u5219\uff08LFI \u68c0\u6d4b\uff09\u3002<\/p>\n<p>\u9a8c\u8bc1\u65f6\u89c2\u5bdf\u4e24\u4e2a\u7ef4\u5ea6\uff1a\u54cd\u5e94\u4fa7\uff0c\u62e6\u622a\u8bf7\u6c42\u5e94\u8fd4\u56de 403 \u6216 406\uff0c\u800c\u4e0d\u662f\u628a\u6076\u610f\u53c2\u6570\u539f\u6837\u6267\u884c\uff1b\u65e5\u5fd7\u4fa7\uff0c<code>modsec_audit.log<\/code> \u4e2d\u6bcf\u6761\u88ab\u62e6\u622a\u8bf7\u6c42\u90fd\u6709\u5b8c\u6574\u89c4\u5219\u94fe\u8bb0\u5f55\u3002\u5efa\u8bae\u6bcf\u5929\u7edf\u8ba1\u62e6\u622a\u5206\u5e03\uff1a<\/p>\n<pre><code class=\"language-bash\">grep &quot;\\[id &quot; \/var\/log\/modsec_audit.log | grep -oP '(?&lt;=\\[id &quot;)[0-9]+' | sort | uniq -c | sort -rn | head\n<\/code><\/pre>\n<p>\u4ee5\u67d0\u5b9e\u9645\u8fd0\u7ef4\u7684 WordPress \u7ad9\u70b9\u4e3a\u4f8b\uff0c\u4e0a\u7ebf CRS \u540e\u4e00\u5468\u5185\uff0cSQL \u6ce8\u5165\u68c0\u6d4b\u89c4\u5219\u547d\u4e2d\u7ea6 2100 \u6b21\uff0c\u7edd\u5927\u591a\u6570\u6765\u81ea\u81ea\u52a8\u5316\u626b\u63cf\u5668\uff0c\u8fd9\u4e9b\u6570\u636e\u4e5f\u662f\u8bc4\u4f30 WAF \u4ef7\u503c\u7684\u76f4\u63a5\u4f9d\u636e\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/modsecurity-waf-log-monitor.webp\" alt=\"\u5206\u6790 WAF \u62e6\u622a\u65e5\u5fd7\u7edf\u8ba1\u6570\u636e\u7684\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<p><strong>WAF \u4e0e\u5176\u4ed6\u5b89\u5168\u5c42\u7684\u5173\u7cfb<\/strong>\uff1aModSecurity \u5de5\u4f5c\u5728\u5e94\u7528\u5c42\uff0c\u4e0d\u66ff\u4ee3\u7f51\u7edc\u5c42\u9632\u706b\u5899\u548c fail2ban\uff08SSH \u7206\u7834\u9632\u62a4\uff09\u3002\u82e5\u7ad9\u70b9\u906d\u9047\u5927\u89c4\u6a21 DDoS\uff08\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff09\uff0cWAF \u81ea\u8eab\u4e5f\u53ef\u80fd\u88ab\u6253\u6ee1\uff0c\u9700\u7ed3\u5408\u9ad8\u9632\u65b9\u6848\uff0c\u601d\u8def\u53ef\u53c2\u8003\u8fd9\u7bc7<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/ddos-attack-emergency-response-guide\/\">DDoS \u5e94\u6025\u54cd\u5e94\u6307\u5357<\/a>\u3002<\/p>\n<h2>\u65e5\u5e38\u8fd0\u7ef4\uff1a\u8ba9 WAF \u957f\u671f\u6709\u6548<\/h2>\n<p>\u4e0a\u7ebf\u53ea\u662f\u5f00\u59cb\uff0c\u9632\u62a4\u4ef7\u503c\u53d6\u51b3\u4e8e\u6301\u7eed\u8fd0\u7ef4\u3002<\/p>\n<p><strong>\u89c4\u5219\u96c6\u66f4\u65b0<\/strong>\uff1aCRS \u5927\u7ea6\u6bcf\u5b63\u5ea6\u53d1\u5e03\u4e00\u6b21\u5c0f\u7248\u672c\uff0c\u4fee\u590d\u65b0\u62ab\u9732\u7684\u7ed5\u8fc7\u624b\u6cd5\u3002\u5efa\u8bae\u7684\u66f4\u65b0\u6d41\u7a0b\u662f\uff1a\u62c9\u53d6\u65b0\u7248\u672c -&gt; \u5728\u6d4b\u8bd5\u73af\u5883\u8dd1 DetectionOnly \u5bf9\u6bd4\u65e5\u5fd7\u5dee\u5f02 -&gt; \u786e\u8ba4\u65e0\u8bef\u62a5\u589e\u91cf\u540e\u66f4\u65b0\u751f\u4ea7\u3002\u8df3\u8fc7\u5bf9\u6bd4\u73af\u8282\u76f4\u63a5\u5347\u7ea7\u751f\u4ea7\uff0c\u662f\u8bef\u62a5\u4e8b\u6545\u7684\u5e38\u89c1\u6765\u6e90\u3002<\/p>\n<p><strong>\u65e5\u5fd7\u4fdd\u7559\u4e0e\u544a\u8b66<\/strong>\uff1a<code>modsec_audit.log<\/code> \u81a8\u80c0\u5f88\u5feb\uff0c\u65e5\u5747 10 \u4e07\u8bf7\u6c42\u7684\u7ad9\u70b9\u6bcf\u6708\u65e5\u5fd7\u91cf\u53ef\u8fbe\u6570 GB\uff0c\u7528 logrotate \u6309\u5929\u5207\u5272\u5e76\u4fdd\u7559 30 \u5929\u662f\u5e38\u89c1\u57fa\u7ebf\u3002\u544a\u8b66\u91cd\u70b9\u5173\u6ce8\u4e24\u7c7b\u4fe1\u53f7\uff1a\u5355\u4e00 IP \u77ed\u65f6\u95f4\u89e6\u53d1\u5927\u91cf\u89c4\u5219\uff0c\u4ee5\u53ca\u4e1a\u52a1\u8def\u5f84\u51fa\u73b0\u65b0\u7684\u89c4\u5219\u547d\u4e2d\u3002<\/p>\n<p><strong>\u6027\u80fd\u5f71\u54cd\u8bc4\u4f30<\/strong>\uff1aModSecurity v3 \u5728 Nginx \u4e0a\u7684\u6027\u80fd\u635f\u8017\u901a\u5e38\u5728 5%-15% \u4e4b\u95f4\u3002\u5982\u679c\u542f\u7528 WAF \u540e\u63a5\u53e3\u5ef6\u8fdf\u4e0a\u5347\u660e\u663e\uff0c\u4f18\u5148\u68c0\u67e5 paranoia level \u8bbe\u7f6e\uff0c\u591a\u6570\u7ad9\u70b9\u4fdd\u6301 <code>tx.paranoia_level=1<\/code> \u5373\u53ef\u5e73\u8861\u9632\u62a4\u4e0e\u6027\u80fd\u3002<\/p>\n<h2>\u603b\u7ed3\u4e0e\u884c\u52a8\u5efa\u8bae<\/h2>\n<p>\u56de\u987e\u6574\u4e2a\u6d41\u7a0b\uff1a\u5148\u5728 DetectionOnly \u6a21\u5f0f\u89c2\u5bdf 48 \u5c0f\u65f6\u6536\u96c6\u8bef\u62a5\u57fa\u7ebf\uff0c\u518d\u901a\u8fc7\u5f02\u5e38\u8bc4\u5206\u9608\u503c\u548c\u7cbe\u51c6\u6392\u9664\u89c4\u5219\u9002\u914d\u4e1a\u52a1\uff0c\u6700\u540e\u5207\u6362\u5230\u62e6\u622a\u6a21\u5f0f\u5e76\u5efa\u7acb\u5b63\u5ea6\u66f4\u65b0\u673a\u5236\u3002\u8fd9\u5957\u8282\u594f\u80fd\u8ba9\u4f60\u5728\u83b7\u5f97\u9632\u62a4\u80fd\u529b\u7684\u540c\u65f6\uff0c\u628a\u5bf9\u4e1a\u52a1\u7684\u5f71\u54cd\u63a7\u5236\u5230\u6700\u4f4e\u3002<\/p>\n<p>\u5982\u679c\u4f60\u9700\u8981\u5f00\u7bb1\u5373\u7528\u7684\u9632\u62a4\u800c\u4e0d\u60f3\u81ea\u5df1\u7ef4\u62a4\u89c4\u5219\uff0c\u53ef\u4ee5\u8003\u8651\u81ea\u5e26 WAF \u9632\u62a4\u7684\u4e3b\u673a\u65b9\u6848\uff0c\u9009\u578b\u65f6\u53ef\u53c2\u8003<a href=\"https:\/\/cn.hostease.com\/blog\/vps\/\">Hostease VPS \u4e3b\u673a\u4e13\u533a<\/a>\u7684\u914d\u7f6e\u8bf4\u660e\u3002\u5bf9\u4e8e\u81ea\u5efa\u573a\u666f\uff0c\u5efa\u8bae\u4ece\u4eca\u5929\u5f00\u59cb\uff1a\u5148\u5b8c\u6210\u5b89\u88c5\uff0c\u8ba9 DetectionOnly \u6a21\u5f0f\u8dd1\u8d77\u6765\uff0c\u89c2\u5bdf\u4e24\u5929\u65e5\u5fd7\u518d\u505a\u62e6\u622a\u51b3\u7b56\u3002\u5b89\u5168\u9632\u62a4\u6700\u6015&#8221;\u4ee5\u540e\u518d\u8bf4&#8221;\uff0c\u653b\u51fb\u626b\u63cf\u5668\u53ef\u4e0d\u4f1a\u7b49\u4f60\u51c6\u5907\u597d\u3002<\/p>\n<p>\u66f4\u591a WordPress \u5b89\u5168\u5b9e\u8df5\uff0c\u53ef\u4ee5\u7ee7\u7eed\u9605\u8bfb\u8fd9\u7bc7<a href=\"https:\/\/cn.hostease.com\/blog\/wordpress\/wordpress-security-guide\/\">WordPress \u5b89\u5168\u9632\u62a4\u6307\u5357<\/a>\uff0c\u628a WAF\u3001\u6743\u9650\u52a0\u56fa\u548c\u5907\u4efd\u7b56\u7565\u7ec4\u5408\u6210\u5b8c\u6574\u7684\u9632\u5fa1\u4f53\u7cfb\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u624b\u628a\u624b\u8bb2\u89e3\u5982\u4f55\u5728\u670d\u52a1\u5668\u4e0a\u90e8\u7f72\u5e76\u914d\u7f6e ModSecurity WAF\uff0c\u8986\u76d6\u5b89\u88c5\u3001OWASP CRS \u89c4\u5219\u542f\u7528\u3001\u8bef\u62a5\u5904\u7406\u4e0e\u65e5\u5fd7\u9a8c\u8bc1\uff0c\u5e2e\u52a9\u7f51\u7ad9\u62b5\u5fa1 SQL \u6ce8\u5165\u3001XSS \u7b49\u5e38\u89c1\u653b\u51fb\u3002<\/p>\n","protected":false},"author":2,"featured_media":33347,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3822],"tags":[4833,4835,5141,3233,43],"class_list":["post-33351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-modsecurity","tag-owaspcrs","tag-sql","tag-waf","tag-43"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/modsecurity-waf-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/comments?post=33351"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33351\/revisions"}],"predecessor-version":[{"id":33352,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33351\/revisions\/33352"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/33347"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=33351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=33351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=33351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}